US2627653A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve spring compressor
Assignee: ROBERT H MACCREADY
•
Filing: 1949-07-25
•
Granted: 1953-02-10
•
Expires: 1969-07-25
Abstract
No abstract record available.
Inventors
- 👤 William L Wisner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:10
CPC Classifications
B; B25; B25B; B25B27/00; B25B27/14; B25B27/24; B25B27/26; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53552; Y10T29/53561; Y10T29/53578; Y10T29/53583
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1370397A
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US1443018A
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US1621237A
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GB283263A
Cited
US1734420A
Cited
US1893962A
Cited
US2311956A
Cited
US2434456A
Cited
US2507240A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-02-10 | 1956-08-11 | 1957-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-02-10 | 1960-08-11 | 1961-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-02-10 | 1964-08-11 | 1965-02-10 | $7700.00 | Window Closed / Lapsed |